That'll work until the first person gets hit by one....
Or the first car's windshield (with the "Sunday" edition). I wonder who's liable if one lands in somebody's swimming pool and plugs his filter... or drops through the top of a greenhouse? -- The American Republic will endure until the day Congress discovers that it can bribe the public with the public's money. A. de Tocqueville
Dramm is introducing a Drone for pest management spray system for greenhouse and nursery application. So what is different for mail and newspapers.
""The Dramm Marauder UPAV system borrows technology from the defense industry to eliminate pest threats in your greenhouse or nursery. The new Marauder UPAV (unmanned pest-management aerial vehicle) is a complete pest management system, offering both scouting and spraying features.
The Marauder UPAV utilizes advanced optical and radio frequency scanning technology to measure pest levels in the treatment area before moving to a treatment phase. Onboard camera, infra-red, radar and laser sensors gauge insect damage and pest levels while the ultraviolet camera can help diagnose various pathogens throughout the crop.""